\chapter{分式}

\input{units/czds2-ch8-subsec1}
\input{units/czds2-ch8-subsec2}
\input{units/czds2-ch8-subsec3}
\input{units/czds2-ch8-subsec4}
\input{units/czds2-ch8-subsec5}
\input{units/czds2-ch8-xiti9}

\input{units/czds2-ch8-subsec6}
\input{units/czds2-ch8-subsec7}
\input{units/czds2-ch8-subsec8}
\input{units/czds2-ch8-subsec9}
\input{units/czds2-ch8-xiti10}

\input{units/czds2-ch8-subsec10}

